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Preparation method of coating film with reinforced antifogging function

An anti-fog film and coating film technology, which is applied in the field of self-adhesive, can solve the problems of leaf diseases and insect pests and rot, and affect the light transmittance of agricultural films, etc., to improve heat aging resistance, significant anti-fog effect, and suppress diseases The effect formed

Inactive Publication Date: 2019-05-24
张海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to its certain hydrophobicity on the surface of the plastic film, when it is used as an agricultural film, when its surface temperature reaches below the fog point, or when the water vapor in the air reaches supersaturation, water droplets will condense or atomize, and the existence of fog and water droplets will cause Light reflection, diffuse reflection and lens effect directly affect the light transmittance of the agricultural film. In addition, water droplets dripping on the plants for a long time can also easily cause diseases, insect pests and rot on the leaves.

Method used

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  • Preparation method of coating film with reinforced antifogging function
  • Preparation method of coating film with reinforced antifogging function

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Effect test

Embodiment 1

[0023] A method for preparing a coated enhanced anti-fog film. A layer of coating film is coated on the surface of a modified PET film, and the modified PET film is made of the following components in parts by weight: PET resin 95, castor oil modified Nano-bentonite 15, plasticizer 1.2; the coating film is formed by drying the coating solution on the surface of the modified PET film, and the coating solution is made of the following components in parts by weight: 3-glycidoxypropoxypropyl Triethoxysilane 4, propylene glycol 15, camellia seed oil 2, sodium dodecylbenzene sulfonate 5, castor oil modified nano-bentonite 5, deionized water 50.

[0024] Further, the preparation method of castor oil modified nano-bentonite comprises the following steps:

[0025] (1) Add the peptide nucleic acid into the buffer, stir at 120r / min for 30min at 40°C, then add nano-bentonite particles with 15% buffer mass, and stir at 200r / min at a constant temperature of 55°C After 2 hours, add formamid...

Embodiment 2

[0040] A method for preparing a coated enhanced anti-fog film. A layer of coating film is coated on the surface of a modified PET film, and the modified PET film is made of the following components in parts by weight: PET resin 98, castor oil modified Nano-bentonite 20, plasticizer 1.6; the coating film is formed by drying the coating solution on the surface of the modified PET film, and the coating solution is made of the following components in parts by weight: 3-glycidoxypropoxypropyl Triethoxysilane 6, propylene glycol 18, camellia seed oil 3, sodium dodecylbenzene sulfonate 7, castor oil modified nano-bentonite 8, deionized water 55.

[0041] Further, the preparation method of castor oil modified nano-bentonite comprises the following steps:

[0042] (1) Add the peptide nucleic acid into the buffer, stir at 120r / min for 30min at 40°C, then add nano-bentonite particles with 15% buffer mass, and stir at 200r / min at a constant temperature of 55°C After 2 hours, add formamid...

Embodiment 3

[0057] A method for preparing a coated enhanced anti-fog film. A layer of coating film is coated on the surface of a modified PET film, and the modified PET film is made of the following components in parts by weight: PET resin 96, castor oil modified Nano-bentonite 18, plasticizer 1.3; the coating film is formed by drying the coating solution on the surface of the modified PET film, and the coating solution is made of the following components in parts by weight: 3-glycidoxypropyl Triethoxysilane 5, propylene glycol 16, camellia seed oil 2.5, sodium dodecylbenzene sulfonate 6, castor oil modified nano-bentonite 7, deionized water 52.

[0058] Further, the preparation method of castor oil modified nano-bentonite comprises the following steps:

[0059] (1) Add the peptide nucleic acid into the buffer, stir at 120r / min for 30min at 40°C, then add nano-bentonite particles with 15% buffer mass, and stir at 200r / min at a constant temperature of 55°C After 2 hours, add formamide wit...

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Abstract

The invention discloses a preparation method of a coating film with a reinforced antifogging function and relates to the technical field of antifogging films. The surface of a modified PET film is coated with a layer of coating film body, and the modified PET film is prepared from PET resin, castor-oil-modified nano bentonite and a plasticizer; the coating film body is formed by drying a coating liquid on the surface of the modified PET film, and the coating liquid is prepared from, by weight, 3-glycidoxypropyltriethoxysilane, propylene glycol, camellia seed oil, sodium dodecyl benzene sulfonate, castor-oil-modified nano bentonite and deionized water. The prepared coating film with the reinforced antifogging function has not only excellent antifogging performance but also great heat resistance and aging resistance.

Description

technical field [0001] The invention belongs to the technical field of self-adhesives, and in particular relates to a method for preparing a coating-enhanced anti-fog film. Background technique [0002] Due to its certain hydrophobicity on the surface of the plastic film, when it is used as an agricultural film, when its surface temperature reaches below the fog point, or when the water vapor in the air reaches supersaturation, water droplets will condense or atomize, and the existence of fog and water droplets will cause The reflection, diffuse reflection and lens effect of light directly affect the light transmittance of the agricultural film. In addition, the accumulation of water droplets on the plants for a long time is also easy to cause diseases, insect pests and rot on the leaves. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a coated enhanced anti-fog film to solve the existing problems. [0004] The p...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J5/18C08L67/02C08K9/04C08K3/34C08K5/11C09D191/00C09D7/62C09D7/63
Inventor 张海涛
Owner 张海涛
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